Electron tube

A vacuum tube is an electronic component that can convert electronic signals into an amplified current or voltage output. According to different working methods and structural characteristics, electron tubes can be divided into three categories: thermionic tubes, cold cathode tubes and semiconductor tubes. Among them, thermionic tubes can be divided into different types such as triodes, tetrodes, and pentodes; cold cathode tubes can be divided into different types such as cathode ray tubes and picture tubes; semiconductor tubes include diodes, field effect tubes, transistors, etc. type. Electron tubes have the characteristics of high reliability, low noise, and high gain, and are widely used in broadcasting, communications, radar, medical and other fields.

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